Where is the line between good and evil?

Deep below the market, in the dark tunnels no human knows exist, a war has begun. Led by the charismatic Beloved Chairman, a colony of rats plots to exterminate the ugly two-legs who have tortured them in labs, crushed them with boots, and looked at them with disgust for as long as anyone can remember. When the Chairman's nephew is injured and a young two-leg nurses him back to health, however, doubt about the war creeps in. Now the colony is split—obey the Chairman and infect the two-legs with the ancient sickness passed down from the Old Ones, or do the unthinkable... Rebel.